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Solis sediment bypass tunnel: First operation experiences

  • The Solis dam was built in 1986 by the Electric Power Company of Zurich (ewz). Ever since the construction, large amounts of sediments accumulated in the reservoir and led to severe sediment aggradation. As a consequence, the storage volume was reduced by about 50% till 2012 causing loss of energy production. Additionally, in the near future sediments may have caused severe damage at the dam due to blockage of the bottom outlets. Therefore, in 2011 and 2012 a sediment bypass tunnel was realized in order to redirect the incoming sediments into the tailwater to inhibit sediment aggradation. Since its inauguration, the tunnel was operated four times including a 100-year flood event in August 2014. First operational experiences are described herein.

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Metadaten
Author:C. Oertli, C. Auel
URN:urn:nbn:de:hbz:836-opus-151539
DOI:https://doi.org/10.25974/fhms-15153
Parent Title (English):Proc. 1st Int. Workshop on Sediment Bypass Tunnels, VAW Mitteilungen
Publisher:ETH Zurich
Document Type:Article in Conference Proceedings
Language:English
Date of Publication (online):2022/08/22
Year of first Publication:2015
Publishing Institution:FH Münster - University of Applied Sciences
Release Date:2022/09/02
First Page:223
Last Page:233
Institutes:Bauingenieurwesen (BAU)
Publication list:Auel, Christian
Licence (German):License Logo Zweitveroeffentlichung